Grip for aerial-tramway cables.



No. 818,429. 7 PATENTED APR.'24, 1906.

. E. P. FREDERICK.

GRIP FOR AERIAL TRAMWAY GABLES.

APPLICATION FILED FEB. 27, 1905. RENEWED FEB. 19.1906.

WYAOWJM 1W4 EDWARD P. FREDERICK,

FATE NT UFFICF.

OF ST. LOUIS, MISSOURI.

GRIP FOR AERlAL-TRAMWAY CABLES.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed February 2'7, 1905. Renewed February 19,1906. Serial No. 301,915.

To all Hill/U177 it rmjny concern:

Beit known that I, EDWARD P. FREDERICK, a citizen of the United States, and a resident of the city of St. Louis, Missouri, have invented certain new and useful Improvements in Grips for Aerial-Tramway Cables, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in grips for aerialtramway cables; and it consists of the novel features herein shown, described, and claimed.

In the drawings, Figure 1 is a side view of my invention with the front plate removed. Fig. 2 is a transverse section on the line 2 20f Fig. 1,and Fig. 3 is a top edge View.

Referring to the drawings in detail, 1 indicates the stationary jaw, which is provided with perforated lugs 2 2 and 3 3. Formed on the lower end of the stationary jaw 1 is an up turned semicircular gri ping-plate 4.

5 indicates a removable front plate, which is applied to the stationary jaw 1 by means of screw 6, passing through suitable holes in said removable plate 5 and into the screwthreaded lugs 2 2, and also by means of screw 7, passing through said removable plate 5 and into screw-threaded lugs 3 3.

8 indicates the movable jaw, which is located between the stationary jaw and front plate 5, said movable jaw 8 being provided on its lower edge with a concave gripping-face 9 in apposition to the upturned semicircular gripping-plate 4. Secured to the movable jaw 8 are rods 10 Said rods 10 are also located in suitable openings in the top edge of the stationary jaw 1. Mounted on the rods 10 are spiral springs 11 and washers 12 and nuts 13, said springs 11 being located between the washers 12 and the top edge of the stationary jaw. The functions of said spiral springs 11 are to release the movable jaw 8. The movable jaw 8 is gripped onto the cable 14 by means of a double-throw cam 15, acting on the top edge of the movable jaw 8. Said double-throw cam 15 is provided with bearings 16 and 17, the bearings 16 being located in a vertically-moving boxing 19 and bearing 17 being located in a vertically-moving boxing 20, the boxing 20 being located in a recess 21, formed in the removable plate 15, and the boxing 19 being located in the opening 22 of the stationary jaw 1. The bearing -16 is formed with an angular head 23, to which a wrench may be applied for operating the double-throw cam 15. The double-throw cam 15 is also provided with a locking-lug 24. Formed on the stationary jaw 1, on the top edge thereof, are vertical standards 25 and 26, the top ends of said standards being connected by a bar 27, provided with elongated opening 28. '26 and formed in the jaw 1 is an elongated opening 29.

In order that the movable j aw 8 may be adjusted relative to the upturned circular gripping-plate 4 to accommodate the grip for the inequalities, variations, and wear of the cable and also that the cable 14 may be removed and inserted between said jaws, I provide an adjusting mechanism which I will now proceed to describe in detail.

Loosely mounted on the rods 10 is an inclined bar 30, said inclined bar being provided with a dovetailed recess 31 and an inclined face 32, 33 indicating a mating bar which has an inclined face 34 and is provided with the dovetailed tongue 35, adapted to fit in the dovetailed recess or groove 31 of the bar 30. Each end of said bar 33 is provided with openings 36, so that the ends of the same may be adjusted over the rods 10 when the said bar is moved to the extreme right or left. The bar 33 carries an upright standard 37, which works in an elongated opening 29. Said standard 37 is provided with a screw-threaded end 38, the same carrying a washer 39 and nut 40. Said screw-threaded end 38 is located and adapted to move in the elongated opening 28. Said standard 37 is provided with a screw threaded transverse opening 41. Mounted in the standards 25 and 26 is a rotating screw-threaded rod 42. The said rod 42 is prevented from lateral movement by means of collars '43 and 44, keyed onto the rod on each side of the standard 26. The rod 42 is provided with an angular head 45 and shoulder 46. Said screw-threaded rod 42 is located in the screw-threaded opening 41 of the standard 37. By rotating the rod 42 lateral movement is imparted to the standard 37, and consequently to the bar 33,'carried by said standard 37 A movement to the right, Fig. 1, of the bar 33 tends to depress the bar 30 and decreases the space between the upper edge of the movable jaw 8 and the lower face of the bar 30.

I have devised a mechanism by which the Located between said standards 25 and double-throw cam may be locked in a vertical position, which I will now proceed to describe.

47 indicates a late carried by the bar 30, which is suscepti le of a slight vertical move ment. Said plate 47 is yieldingly secured to said bar by means of a spring 48, each end of said spring being secured to the bar 30 by means of screws 49. The lower edge of said late is provided with a notch] in which the ug 24 is adapted to be engaged and disengaged. By the use of the catch-plate 47 and lug 24 the double-throw cam 15 may be lo cated in a vertical position. 50 indicates lugs carried by the stationary jaw 1., to which may be attached the bucket-frame.

Having fully described my invention, what I claim is 1. In a grip for aerial tramways, mechanism for adjusting the movable jaw, comprising two bars, having inclined faces, dovetailed into each other and slidingly mounted relative to each other, the uppermost one of said bars being provided with a standard having a screw threaded opening, and a screwthreaded shaft mounted in said opening and fixed against horizontal movement, by means of which a horizontal movement may be im parted to said upper bar; substantially as specified.

2. In a grip for aerial tramways, a horizontal adjustable mechanism for adjusting the movable jaw, comprising two bars, having inclined faces dovetailed into and slidingly mounted relative to each other, the upper most one of said bars being provided with a standard having a screw-threaded opening, a screw-threaded shaft mounted in said opening and fixed against horizontal movement,

by means of which a horizontal movement may be imparted to said upper bar, and a resilient-spring catch carried by the lowermost one of said bars; substantially as specified 3. In a grip for aerial tramways, a horizontal adjustable mechanism for adjusting the movable jaw, comprising two bars, having inclined faces dovetailed into and slidingly mounted relative to each other, the uppermost one of said bars being provided with a standard having a screw-threaded opening, a screw-threaded shaft mounted in said opening and fixed against horizontal movement, by means of which a horizontal movement may be imparted to said upper bar, a resilient-spring catch carried by the lowermost one of said bars, and a clamping mechanism for the movable jaw, provided with a lug adapted to engage in the said resilient catch; substantially as specified.

In testimony whereof I have signed my name to this specification in presence of two subscribing Witnesses.

EDWARD I. FREDERICK.

Witnesses:

ALFRED A. EIcKs, EDW. M. HARRINGTON. 

